3.0 Site Requirements
6
1
3.1
Fireplace Opening
1. The principal site requirements are determined
by the boiler unit, but the following details are
essential for the correct installation of the fire unit:
Fireplace Opening (Fig. 2):
Height:
560mm (22in) min
590mm (23
15
/
64
in) max
Width:
460mm (18in) min
560mm (22in) max
NOTE:
The wall or surround behind the fire
must be non-combustible.
Non-Combustible area (Fig. 3):
Height
625mm (24
19
/
32
in)
Width
625mm (24
19
/
32
in)
2. Any gaps between the wall and the surround
must be sealed. A shelf, not projecting more than
178mm (7in), may be fitted at least 126mm (5in)
above fire or 180mm (7
1
/
8
in) for 229mm (9in)
deep shelf.
3.2
Hearth Mounting
1. The fire unit is intended to be hearth mounted.
The hearth must be of a non-combustible
material at least 13mm (
1
/
2
in) thick and measuring
at least 300mm (12in) deep by 600mm (23
5
/
8
in)
wide and fitted centrally about the fireplace
opening. The top surface of the hearth should be
a minimum of 50mm (2in) above floor level and
must be level with the base of the builders
opening (Fig. 4).
2.
On no account should the fire unit be fitted
directly onto a combustible floor or carpet.
3. Alternatively, a fender rail or upstanding edge
of 50mm (2in) height can be fitted to the
periphery of the 13mm (
1
/
2
in) non-combustible
hearth (Fig. 5).
NOTE:
If the firefront must be wall mounted, it
is still necessary to fit a hearth of the
dimensions shown.
460mm Min
560mm Max
Fireplace
Opening
560mm
Min
590mm
Max
Fireplace Opening
Surround and
Non-Combustible Area
Minimum Hearth
Dimensions
300mm
600mm
50mm
13mm
625mm
625mm
300mm
600mm
50mm
13mm
Fig. 2
Fig. 3
Fig. 4
Fig. 5
